All in one printer wifi problem

Got an ageing Epson XP305 printer /scanner installed to use with WiFi. No problems at all with the printer, but when I try to use the scanner all I get is scanner not found. But connect a cable and it works.
If I choose Select source it's there, but choose Acquire and error.
Could there be two separate wifi adapters in the device? If not I cannot see a reinstall doing any good as wifi according to the printer is working.
Only problem with a cable is that two printers are showing now.
Grateful for any advice.